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Posted to issues@flink.apache.org by "aitozi (JIRA)" <ji...@apache.org> on 2018/06/28 14:03:00 UTC

[jira] [Updated] (FLINK-9687) Delay the state fetch only when the triggerResult is fire

     [ https://issues.apache.org/jira/browse/FLINK-9687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

aitozi updated FLINK-9687:
--------------------------
    Description: When the window operator is fired by the event timer or processing timer, it fetch the state content first. I think it only need to fetch the content from windowState when the triggerResult is Fire. So we have to change the order to avoid this cost ( the cost of fetch content from state is more than judge the triggerResult). 

> Delay the state fetch only when the triggerResult is fire
> ---------------------------------------------------------
>
>                 Key: FLINK-9687
>                 URL: https://issues.apache.org/jira/browse/FLINK-9687
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 1.5.0
>            Reporter: aitozi
>            Assignee: aitozi
>            Priority: Major
>
> When the window operator is fired by the event timer or processing timer, it fetch the state content first. I think it only need to fetch the content from windowState when the triggerResult is Fire. So we have to change the order to avoid this cost ( the cost of fetch content from state is more than judge the triggerResult). 



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